Question: What is a diplomatic relation of El Salvador that is a member of NAFTA?
Paraphrase: What may be a conciliatory connection of El Salvador that's a part of NAFTA?
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q792 wdt:P530 ?answer . ?answer wdt:P463 wd:Q181574}
Answer: United States of America, Mexico